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CVE-2025-39971 — i40e: fix idx validation in config queues msg

Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

i40e: fix idx validation in config queues msg

Ensure idx is within range of active/initialized TCs when iterating over vf->ch[idx] in i40e_vc_config_queues_msg().

RHSA-2025:21469 — Red Hat Security Advisory: kernel security update

kernel: KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush kernel: do_change_type(): refuse to operate on unmounted/not ours mounts kernel: NFS: Fix a race when updating an existing write kernel: kernfs: Fix UAF in polling when open file is released kernel: i40e: fix idx validation in config queues msg kernel: i40e: add validation for ring_len param kernel: Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync kernel: Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue kernel: io_uring/waitid: always prune wait queue entry in io_waitid_wait()

RHSA-2025:21920 — Red Hat Security Advisory: kernel-rt security update

kernel: NFS: Fix a race when updating an existing write kernel: i40e: fix idx validation in config queues msg kernel: i40e: add validation for ring_len param